US6058708A - Device for controlling an internal combustion engine - Google Patents

Device for controlling an internal combustion engine Download PDF

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Publication number
US6058708A
US6058708A US09/124,621 US12462198A US6058708A US 6058708 A US6058708 A US 6058708A US 12462198 A US12462198 A US 12462198A US 6058708 A US6058708 A US 6058708A
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Prior art keywords
controller
charging
mass flow
air mass
actuator
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Expired - Fee Related
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US09/124,621
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Dirk Heinitz
Achim Przymusinski
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Siemens AG
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Siemens AG
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Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEINITZ, DIRK, PRZYMUSINSKI, ACHIM
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D23/00—Controlling engines characterised by their being supercharged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative controller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1418—Several control loops, either as alternatives or simultaneous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1418—Several control loops, either as alternatives or simultaneous
    • F02D2041/1419—Several control loops, either as alternatives or simultaneous the control loops being cascaded, i.e. being placed in series or nested
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the second controller quickly smoothes out deviations in the air mass flow so that the control errors of the first controller are reduced.
  • the manipulated variable of the second controller is an exhaust gas pressure
  • the cascaded control device includes a third controller using the exhaust gas pressure as a controlled variable and having a manipulated variable acting on the actuator.
  • the cascaded control device additionally determines the charging pressure as a function of a charging air temperature.
  • FIG. 2 is a block circuit diagram of a first embodiment of the cascaded control device.
  • the sensors are a pedal position sensor 61 which senses a pedal position PV of an accelerator pedal 6, an air mass flow rate meter 12 which senses an air mass flow, a pressure sensor 13 which senses a charging pressure, a temperature sensor 14 which senses a charging air temperature TAL, a rotational speed sensor 24 which senses a rotational speed N of the crankshaft 23, and a further pressure sensor 44 which senses an exhaust gas pressure in the exhaust gas tract 4.
  • a pedal position sensor 61 which senses a pedal position PV of an accelerator pedal 6, an air mass flow rate meter 12 which senses an air mass flow, a pressure sensor 13 which senses a charging pressure, a temperature sensor 14 which senses a charging air temperature TAL, a rotational speed sensor 24 which senses a rotational speed N of the crankshaft 23, and a further pressure sensor 44 which senses an exhaust gas pressure in the exhaust gas tract 4.
  • Any desired subset of the aforesaid sensors, or even additional sensors may be provided, depending on the embodiment of the invention.
  • Operational variables include the measured variables and variables derived therefrom, such as an exhaust gas temperature, which are determined through the use of a characteristic diagram relationship or by an observer.
  • a first controller 51 has the charging pressure as a controlled variable.
  • the first controller 51 determines a setpoint value MAF -- SP of the air mass flow as a function of a difference between the setpoint value MAP -- SP and the actual value MAP -- AV of the charging pressure.
  • the first controller 51 is preferably constructed as a PI controller and is thus both quick and precise in steady state.
  • the second controller 52 determines a setpoint value BP -- SP of the exhaust gas pressure.
  • a controlled variable of a third controller 54 is the exhaust gas pressure.
  • the third controller 54 determines the degree of opening OG of the bypass valve or an adjustment angle of the blades of the turbine 40 as a function of a difference between the setpoint value BP -- SP and an actual value BP -- AV of the exhaust gas pressure.
  • the third controller is preferably constructed as a P or PD controller.
  • the cascaded control device according to FIG. 3 ensures a particularly high control quality since the exhaust gas pressure directly influences the power of the turbine 40. Characteristic diagrams are determined through the use of steady-state measurements on an engine test bed or through the use of driving trials.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

An internal combustion engine has a pressure sensor for a charging pressure, an air mass flow rate meter for an air mass flow and a charging device with which a bypass valve in a bypass pipe or an actuator for varying the geometry of a turbine are associated. A cascaded control device for controlling the internal combustion engine includes a first controller having a controlled variable that is the charging pressure and a manipulated variable which is the air mass flow, as well as a second controller having a controlled variable that is the air mass flow and a manipulated variable which is the degree of opening of the bypass valve.

Description

BACKGROUND OF THE INVENTION FIELD OF THE INVENTION
The invention relates to a device for controlling an internal combustion engine, having a pressure sensor in an intake tract for sensing a charging pressure, an air mass flow rate meter for sensing an air mass flow, and a charging device to which an actuator is assigned.
A device for controlling an internal combustion engine is known from German Published, Non-Prosecuted Patent Application DE 43 44 960 A1. The internal combustion engine has an intake tract with a pressure sensor which senses a charging pressure as well as an air mass flow rate meter which senses an air mass flow. A charging device has a compressor, a turbine and a bypass valve in a bypass pipe which bypasses the turbine. A controller is provided having a controlled variable which is the charging pressure and a manipulated variable that is a signal for actuating the bypass valve. However, the charging pressure changes only after a long delay time after the bypass valve has been influenced. Accordingly, the controller has a low control quality, particularly during the non-steady state operation of the internal combustion engine.
SUMMARY OF THE INVENTION
It is accordingly an object of the invention to provide a device for controlling an internal combustion engine, which overcomes the hereinafore-mentioned disadvantages of the heretofore-known devices of this general type and which quickly and precisely adjusts a charging pressure even during non-steady state operation of the internal combustion engine.
With the foregoing and other objects in view there is provided, in accordance with the invention, a device for controlling an internal combustion engine including an intake tract, a pressure sensor in the intake tract for sensing a charging pressure, an air mass flow rate meter for sensing an air mass flow, a charging device, and an actuator associated with the charging device, comprising a cascaded control device including a first controller using the charging pressure as a controlled variable and the air mass flow as a manipulated variable, and a second controller using the air mass flow as a controlled variable and having a manipulated variable acting on the actuator.
The second controller quickly smoothes out deviations in the air mass flow so that the control errors of the first controller are reduced.
In accordance with another feature of the invention, the manipulated variable of the second controller is an exhaust gas pressure, and the cascaded control device includes a third controller using the exhaust gas pressure as a controlled variable and having a manipulated variable acting on the actuator.
In accordance with a further feature of the invention, the first controller is a proportional-integral controller.
In accordance with an added feature of the invention, the second controller is a proportional controller.
In accordance with an additional feature of the invention, the cascaded control device determines a setpoint value of the charging pressure as a function of a pedal position of an accelerator pedal and a rotational speed.
In accordance with yet another feature of the invention, the cascaded control device additionally determines the charging pressure as a function of a charging air temperature.
In accordance with yet a further feature of the invention, the charging device has a turbine, and the actuator is an actuator for varying a geometry of the turbine.
In accordance with a concomitant feature of the invention, the actuator is a bypass valve in a bypass pipe.
Other features which are considered as characteristic for the invention are set forth in the appended claims.
Although the invention is illustrated and described herein as embodied in a device for controlling an internal combustion engine, it is nevertheless not intended to be limited to the details shown, since various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a diagrammatic and schematic illustration of an internal combustion engine with a control device;
FIG. 2 is a block circuit diagram of a first embodiment of the cascaded control device; and
FIG. 3 is a block circuit diagram of a second embodiment of the cascaded control device.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to the figures of the drawings in detail and first, particularly, to FIG. 1 thereof, there is seen an internal combustion engine which includes an intake tract 1 with a compressor 10 and an engine block 2 with a cylinder 20 and a crankshaft 23. A piston 21 and a connecting rod 22 are associated with the cylinder 20. The connecting rod 22 is connected to the piston 21 and the crankshaft 23.
Furthermore, a valve drive having at least one inlet valve 30 and one outlet valve 31, is disposed in a cylinder head 3. In addition, an injection valve 33, which is disposed in such a way that fuel is metered directly into the interior of the cylinder 20, is provided in the cylinder head 3. The metered fuel is preferably Diesel oil, but as an alternative gasoline may also be metered. If gasoline is used as the fuel, a sparkplug is additionally disposed in the cylinder head 3. The internal combustion engine is illustrated with one cylinder in FIG. 1. However, it may also have a plurality of cylinders.
Furthermore, the internal combustion engine includes an exhaust gas tract 4 with a turbine 40 which is mechanically coupled to the compressor 10. A bypass pipe 41 is connected to the exhaust gas tract 4, upstream and downstream of the turbine 40. A bypass valve 42 is disposed in the bypass pipe 41. Instead of the bypass pipe with the bypass valve 42, an adjustment drive 43 may be provided, through the use of which the geometry of the turbine 40 can be adjusted. In this context, blade wheels of the turbine 40 are adjusted, for example. As an alternative, the compressor 10 may also be mechanically coupled to the crankshaft 23. Then a bypass line to the compressor 10 is provided instead of the turbine 40 and the bypass pipe 41 or the adjustment drive 43. The bypass valve 42 is disposed in the bypass line.
A control apparatus 5 is provided for the internal combustion engine. Sensors which sense various measured variables and which respectively determine a measured value of the measured variable are associated with the apparatus 5. The control apparatus 5 determines one or more actuation signals which respectively control an actuation device, as a function of at least one measured variable.
The sensors are a pedal position sensor 61 which senses a pedal position PV of an accelerator pedal 6, an air mass flow rate meter 12 which senses an air mass flow, a pressure sensor 13 which senses a charging pressure, a temperature sensor 14 which senses a charging air temperature TAL, a rotational speed sensor 24 which senses a rotational speed N of the crankshaft 23, and a further pressure sensor 44 which senses an exhaust gas pressure in the exhaust gas tract 4. Any desired subset of the aforesaid sensors, or even additional sensors may be provided, depending on the embodiment of the invention.
Operational variables include the measured variables and variables derived therefrom, such as an exhaust gas temperature, which are determined through the use of a characteristic diagram relationship or by an observer.
The actuation devices each include an actuating drive and an actuator. The actuating drive is an electromotive drive, an electromagnetic drive, a mechanical drive or a further drive known to a person skilled in the art. The actuators are provided as the injection valve 33, as the bypass valve 42 or as the adjustment drive 43 for adjusting the geometry of the turbine.
The control apparatus 5 is preferably constructed as an electronic engine controller. However, it may also include a plurality of control apparatuses which are electrically conductively connected to one another, for example through a bus system.
FIG. 2 illustrates a block circuit diagram of a cascaded control device which is disposed in the control apparatus 5. A setpoint value MAP-- SP of the charging pressure is determined in a block 50 as a function of the pedal value PV, of the rotational speed N and of the charging air temperature TAL. For this purpose, a characteristic diagram in which values of the setpoint values MAP-- SP are stored as a function of the pedal value and/or of the rotational speed N and/or of the charging air temperature TAL, is preferably provided.
A first controller 51 has the charging pressure as a controlled variable. The first controller 51 determines a setpoint value MAF-- SP of the air mass flow as a function of a difference between the setpoint value MAP-- SP and the actual value MAP-- AV of the charging pressure. The first controller 51 is preferably constructed as a PI controller and is thus both quick and precise in steady state.
A second controller 52 is provided having a controlled variable which is the air mass flow. The second controller 52 determines a degree of opening of the bypass valve, or in another embodiment an adjustment angle of the blades of the turbine 40, as a function of a difference between the setpoint value MAF-- SP and the actual value MAF-- AV of the air mass flow. The second controller 52 is preferably constructed as a P or PD controller.
A modulator 53 is provided which pulse-width modulates a voltage signal U-- PWM as a function of a degree of opening OG.
In a non-steady operating state, the actual value MAF-- AV of the air mass flow firstly changes more quickly than the actual value MAP-- AV of the charging pressure. The second controller 52 can thus smooth out a control error at an early stage so that the first controller only has to smooth out a relatively small control error.
In a further exemplary embodiment shown in FIG. 3, the second controller 52 determines a setpoint value BP-- SP of the exhaust gas pressure. A controlled variable of a third controller 54 is the exhaust gas pressure. The third controller 54 determines the degree of opening OG of the bypass valve or an adjustment angle of the blades of the turbine 40 as a function of a difference between the setpoint value BP-- SP and an actual value BP-- AV of the exhaust gas pressure. The third controller is preferably constructed as a P or PD controller. The cascaded control device according to FIG. 3 ensures a particularly high control quality since the exhaust gas pressure directly influences the power of the turbine 40. Characteristic diagrams are determined through the use of steady-state measurements on an engine test bed or through the use of driving trials.
The invention is not restricted to the exemplary embodiments described herein. For example, the cascaded control device can also include further controllers. As an alternative, the parameters of the controllers 51, 52, 54 may also be dependent on the rotational speed N. If the internal combustion engine has a charging device with a compressor that is mechanically connected to the crankshaft 23, the controlled variable quality of the second or third controller 52, 54 is preferably the rotational speed N.

Claims (8)

We claim:
1. In an internal combustion engine having an intake tract, a pressure sensor in the intake tract for sensing a charging pressure, an air mass flow rate meter for sensing an air mass flow, a charging device, and an actuator associated with the charging device, a device for controlling the internal combustion engine, comprising:
a cascaded control device including a first controller using the charging pressure as a controlled variable and the air mass flow as a manipulated variable, and a second controller using the air mass flow as a controlled variable and having a manipulated variable acting on the actuator.
2. The device according to claim 1, wherein the manipulated variable of said second controller is an exhaust gas pressure, and said cascaded control device includes a third controller using the exhaust gas pressure as a controlled variable and having a manipulated variable acting on the actuator.
3. The device according to claim 1, wherein said first controller is a proportional-integral controller.
4. The device according to claim 1, wherein said second controller is a proportional controller.
5. The device according to claim 1, wherein said cascaded control device determines a setpoint value of the charging pressure as a function of a pedal position of an accelerator pedal and a rotational speed.
6. The device according to claim 5, wherein said cascaded control device additionally determines the charging pressure as a function of a charging air temperature.
7. The device according to claim 1, wherein the charging device has a turbine, and the actuator is an actuator for varying a geometry of the turbine.
8. The device according to claim 1, wherein the actuator is a bypass valve in a bypass pipe.
US09/124,621 1997-07-29 1998-07-29 Device for controlling an internal combustion engine Expired - Fee Related US6058708A (en)

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US20020016664A1 (en) * 2000-08-02 2002-02-07 Michael Baeuerle Method, computer program and control system for determining the air mass which is supplied to an internal combustion engine via an intake manifold
US6418719B2 (en) * 2000-01-25 2002-07-16 International Engine Intellectual Property Company, L.L.C. Control of a variable geometry turbocharger by sensing exhaust pressure
WO2003027464A1 (en) * 2001-09-13 2003-04-03 Robert Bosch Gmbh Method and device for operating at least one turbocharger on an internal combustion engine
US6672060B1 (en) 2002-07-30 2004-01-06 Ford Global Technologies, Llc Coordinated control of electronic throttle and variable geometry turbocharger in boosted stoichiometric spark ignition engines
GB2390642A (en) * 2002-07-09 2004-01-14 Honeywell Uk Ltd Turbocharged i.c engine
US20040015248A1 (en) * 2002-05-21 2004-01-22 Masato Tanaka Control method and control apparatus
US20040118390A1 (en) * 2002-07-08 2004-06-24 Honda Giken Kogyo Kabushiki Kaisha Control system and method and engine control unit for compression ignition internal combustion engine
EP1475524A1 (en) * 2003-05-07 2004-11-10 Robert Bosch Gmbh Method and device for operating an internal combustion engine
WO2004104393A1 (en) * 2003-05-24 2004-12-02 Daimlerchrysler Ag Regulator device, internal combustion engine, vehicle and method for regulating the boost pressure of two exhaust-gas turbochargers
US20050217647A1 (en) * 2004-03-31 2005-10-06 Ernst Wild Method and device for operating an internal combustion engine
FR2874968A1 (en) * 2004-09-06 2006-03-10 Renault Sas Internal combustion engine`s e.g. overfed diesel engine, boost pressure controlling method for motor vehicle, involves determining set point value of pressure in upstream of turbine of turbocompressor
WO2007129970A1 (en) * 2006-05-09 2007-11-15 Scania Cv Ab (Publ) Exhaust gas brake control
US20090217663A1 (en) * 2006-02-28 2009-09-03 Renault S.A.S Method and device for controlling supercharging air of an internal combustion engine
US20110010076A1 (en) * 2007-10-30 2011-01-13 Matthias Heinkele Method and device for operating an internal combustion engine
GB2511767A (en) * 2013-03-12 2014-09-17 Gm Global Tech Operations Inc Method and system for controlling a boost pressure of a turbocharged internal combustion engine
CN108060987A (en) * 2018-01-02 2018-05-22 无锡财尔科技有限公司 Turbocharger and control method with intelligent control

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FR2885648A1 (en) * 2005-05-12 2006-11-17 Renault Sas Controlling a vehicle engine having a turbocharger comprises controlling the supercharging pressure and a characteristic parameter of the turbocharger
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US6418719B2 (en) * 2000-01-25 2002-07-16 International Engine Intellectual Property Company, L.L.C. Control of a variable geometry turbocharger by sensing exhaust pressure
US6654679B2 (en) * 2000-08-02 2003-11-25 Robert Bosch Gmbh Method, computer program and control system for determining the air mass which is supplied to an internal combustion engine via an intake manifold
US20020016664A1 (en) * 2000-08-02 2002-02-07 Michael Baeuerle Method, computer program and control system for determining the air mass which is supplied to an internal combustion engine via an intake manifold
WO2003027464A1 (en) * 2001-09-13 2003-04-03 Robert Bosch Gmbh Method and device for operating at least one turbocharger on an internal combustion engine
US7540148B2 (en) 2001-09-13 2009-06-02 Robert Bosch Gmbh Method and device for operating at least one turbocharger on an internal combustion engine
US20040015248A1 (en) * 2002-05-21 2004-01-22 Masato Tanaka Control method and control apparatus
US6895287B2 (en) * 2002-05-21 2005-05-17 Yamatake Corporation Control method and control apparatus
US20040118390A1 (en) * 2002-07-08 2004-06-24 Honda Giken Kogyo Kabushiki Kaisha Control system and method and engine control unit for compression ignition internal combustion engine
US6817349B2 (en) * 2002-07-08 2004-11-16 Honda Giken Kogyo Kabushiki Kaisha Control system and method and engine control unit for compression ignition internal combustion engine
GB2390642A (en) * 2002-07-09 2004-01-14 Honeywell Uk Ltd Turbocharged i.c engine
US6672060B1 (en) 2002-07-30 2004-01-06 Ford Global Technologies, Llc Coordinated control of electronic throttle and variable geometry turbocharger in boosted stoichiometric spark ignition engines
EP1475524A1 (en) * 2003-05-07 2004-11-10 Robert Bosch Gmbh Method and device for operating an internal combustion engine
WO2004104393A1 (en) * 2003-05-24 2004-12-02 Daimlerchrysler Ag Regulator device, internal combustion engine, vehicle and method for regulating the boost pressure of two exhaust-gas turbochargers
US20050217647A1 (en) * 2004-03-31 2005-10-06 Ernst Wild Method and device for operating an internal combustion engine
US7287377B2 (en) * 2004-03-31 2007-10-30 Robert Bosch Gmbh Method and device for operating an internal combustion engine
FR2874968A1 (en) * 2004-09-06 2006-03-10 Renault Sas Internal combustion engine`s e.g. overfed diesel engine, boost pressure controlling method for motor vehicle, involves determining set point value of pressure in upstream of turbine of turbocompressor
US20090217663A1 (en) * 2006-02-28 2009-09-03 Renault S.A.S Method and device for controlling supercharging air of an internal combustion engine
WO2007129970A1 (en) * 2006-05-09 2007-11-15 Scania Cv Ab (Publ) Exhaust gas brake control
US20110010076A1 (en) * 2007-10-30 2011-01-13 Matthias Heinkele Method and device for operating an internal combustion engine
US8095293B2 (en) * 2007-10-30 2012-01-10 Robert Bosch Gmbh Method and device for operating an internal combustion engine
GB2511767A (en) * 2013-03-12 2014-09-17 Gm Global Tech Operations Inc Method and system for controlling a boost pressure of a turbocharged internal combustion engine
GB2511767B (en) * 2013-03-12 2017-04-26 Gm Global Tech Operations Method and system for controlling a boost pressure of a turbocharged internal combustion engine
CN108060987A (en) * 2018-01-02 2018-05-22 无锡财尔科技有限公司 Turbocharger and control method with intelligent control

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FR2766873B1 (en) 2001-04-20
FR2766873A1 (en) 1999-02-05
DE19732642C2 (en) 2001-04-19
DE19732642A1 (en) 1999-02-25

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